Quantity   Component name
1 × Arduino Nano
1 × Max7919, 7 segment, 8 digit, I2C display Stepper position display
1 × HV7801, High side current sensor Battery charge current monitor
1 × Wall charger case
1 × 7 Pin, female, mini DIN cable Cable assembly to connect to stepper motor
1 × DC power cable of choice DC power cable to connect to DC source for battery charging
5 × Rechargeable, 1.2V, AAA Ni-MH battery